the sandy hook elementary school will be closed indefinitely. later today president obama announces a new effort to come up with policies to address gun violence. vice president biden, a long-time gun control advocate, will lead that effort. >>> meanwhile, the main owner of the gun maker that manufactured the rifle used in the newtown is promising to sell its stock in the company. sesh ber capitol management made its move. they threatened to pull out a $750 million investment. rebecca jarvis is here with wall street's reaction to the newtown shooting. rebecca, it is interesting to see the market's reaction to this. talk specifically about serber. this is the private equity group that had the investment in the gun maker. why did they make the decision? >> they made it because they were under pressure from one of the largest pension funds. they said we're pulling or $750 million investment if you don't pull out of it. the private equity firm is now selling it. you're seeing some of that same selling reflected in the public stock market when it com